Brick-kiln



(No Model.) 2 Sheets-Sheet 1.

S. DEWHIRST.

BRIGK KILN.

No. 480,661. Patented Aug. 9, 1892.

INVENTOH W/TNESSES z y m A TTORNE Y S.

(No Model.) 2- Sheets-Sheet 2.

S. DEWHIRST.

BRICK KILN.

No. 480,561. Patehted Aug. 9, 1892.

ii Iii INVENTOI? Lon/w A TTOHNE YS.

WITNESSES UNITED STATES PATENT ()FFICE.

SIMON DEVVHIRST, OF ST. JOSEPH, MISSOURI.

BRICK- KILN.

SPECIFICATION forming part of Letters Patent No. 480,561, dated August 9, 1892.

Application filed March 16, 1892.

To (ZZZ whom it may concern:

Be it known that I, SIMON DEWHIRST, of St. Joseph, in the county of Buchanan and State of Missouri, have invented a new and Improved Brick-Kiln, of which the following is a full, clear, and exact description.

The invention relates to brick-kilns such as shown and described in the Letters Patent of the United States No. 410,788, granted to Inc September 10, 1889.

The object of the present invention isto provide a new and improved brick-kiln which is slmple and durable in construction, very effective in operation, and arranged to utilize the fuel in themost economical manner and to produce a uniform degree of heat in all parts of the kiln.

The invention consists of a kiln provided in its side walls with a series of combustionchambers leading into the interior of the kiln above the floor thereof and a series of furnaces arranged on the outside of the kiln, each furnace communicating with a combustionchamber and each being provided with a separate combustion-chamber opening into the interior of the kiln above the first-named combustion-chambers.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional plan view of the improvement. Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1, and Fig. 3 is a sectional side elevation of one of the furnaces on the line 3 3 of Fig. 2.

The improved brick-kiln is-provided with the kiln-building A of suitable size and diameter and provided in its end with doors B, through which the bricks to be burned can be carried in or the burned bricks removed from the building. The kiln-building A is provided with hollow side walls 0 and O and also with a floor D, arranged a suitable distance the ground, as is plainly illustrated Serial No. 425,156. (No model.)

in Fig. 2. On the ends of the kiln-buildingA and at the corners thereof are arranged the four chimneys E, E, E and E of which the two chimneys E and E are connected with each other at their lower ends by a longitudinally-extending channel E passing under the floorD. The lower end of the chimney E is connected with a longitudinally-extending channel E extending under the floorD, near the middle thereof and opening into the interior of the building by suitable apertures E placed suitable distances apart, as is plainly shown in Figs. 1 and 2. The end of the channel E is connected with the lower end of the chimney E?, and the latter is also connected by a longitudinal channel E with the lower end of the chimney E The channel E also extends under the floor D, as is plainly shown in Fig. 2. The longitudinal channels E and E are connected at their outer sides with compartments F and F, re spectively, opening into the interior of the kiln above the floor D, as will be readily understood by reference to Figs. 1 and 2. In the compartments F and F are arranged transversely-extending dampers F F reaching to the outside of the sides 0 and 0, respectively, and adapted to connect the interior of the kiln A with or disconnect it from the longitudinal channels E and E respectively.

On the outside of the sides 0 and O are arranged a series of furnaces G, located at the sides of the compartments F and F and each provided with a firebox H, into which leads an opening H for introducing the fuel to be burned in the said fire-box. In the bottom of the latter is arranged a grate 1, below which is formed the usual ash-pit J, opening to the outside for conveniently removing the ashes.

In the inner wall of the fire-box H and at the sides thereof are formed openings K, leading to a combustion-chamber K, formed in the hollow walls 0 and C, respectively. Each of the combustion-chambers K connects by an opening K with the interior of the kiln-building A, so that part of the smoke and gases from the fire-box H can pass into the combustion-chamber K through the openings K and from the combustion-chamber through the openings K into the interior of the kiln. The upper end of each of the fire-boxes H opens into a combustion-chamber L, extending upward on the outer side wall and connecting with the interior of the building by a transversely-extending pipe L, reaching through the double side wall 0 or 0'. Thus part of the smoke and gases rising in the firebox I-I pass up into the combustion-chamber L and from the latter through the pipe L into the interior of the kiln-building A.

On each side of each combustion-chamber L is formed a compartment N, connecting by openings N with the interior of the combustion-chamber, as is plainly shown in Fig. 3. In the bottom of each compartment N are formed openings N leading to a transverselyextending channel 0, formed with an opening 0, leading to the outside, so that air can pass through the said opening 0' into the channel 0 and from the latter through the openings N into the compartment N. The channel 0 also connects by openings 0 with the fire-box H, and in the end of the channel is formed an opening 0 leading into the space between the two walls of each double side wall 0 or C. Thus smoke and gases from the fire-box H can pass through the openings '0 into the channel 0 to mix with the air entering through the opening 0. Part of the mixture can then pass through the opening 0 into the space between the side walls, as above described, and into the compartments F and F, connecting with the interior of the kiln-building and also with the chimney-channels E and E, as before explained. Part of the mixture in the channels O can pass through the openings N into the compartments N and from the latter through the openings N into the combustionchamber L of the respective furnace G to mix with the gases arising from the fire-box H. In each of the combustion-chambers L is arranged a peep-hole L located directly in line with the pipe L, connecting the combustion-chamber L with the interier of the kiln, as before described. In the arched top P of the kiln-building A are arranged openings P for the escape of moisture, smoke, &c., arising within the building A from the bricks located therein.

It will be seen that by this arrangement the heat arising from the several furnaces G does not pass directly into the kiln-building A, but passes first through the combustion-chambers K and L before entering the building, the inlets of the said combustionchambers being one above the other, so that the brick set up in the kiln-building is uniformly heated near its lower end as well as near the top. It will further be seen that the necessary air is furnished to the combustionchambers K and L from the outside, so as to burn all the gases, thus preventing any waste of fuel. It will further be seen that by the use of the dampers F and F in the compartnients F and F a downward draftof the heat can be had within the building A through the bricks, as the lower ends of the sa d compartments F and F are connected with the longitudinal channels leading to the chunneys. A like draft can pass through the center of the bricks in the kiln-build ng to the openings E, leading to the longitudinal channel E also connected with the two end chimneys E and E. U

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A brick-kiln provided in its side walls with a series of combustion-chambers opening into the interior of the kiln above the floor thereof, in combination with a series of furnaces located on the outside of the kiln, each furnace being connected with one of the said combustion-chambers and provided with a second combustion-chamber opening into the interior of the kiln above the firstnamed combustion-chambers, substantially as shown and described.

2. A brick-kiln provided in its side walls with combustion-chambers opening into the interior of the kiln above the floor thereof and a series of chimneys connected with each other by longitudinal channels opening into the interior of the kiln-building, in combination with a series of furnaces located on the sides of the kiln and each connected with one of the said combustion-chambers and each provided with a second combustionchamber opening into the interior of the kiln above the first-named combustion-chambers, substantially as shown and described.

3. A brick-kiln provided in its side walls with combustion-chambers opening into the kiln above the floor thereof, in combination with a series of chimneys arranged at the ends of the said kiln and longitudinal channels connecting the said chimneys with each other and located under the floor of the kiln, each of the said channels being connected with the interior of the kiln, substantially as shown and described.

4. A brick-kiln provided with a furnace comprising a fire-box connecting at its inner end with a combustion-chamber, a second combustion-chamber connected with the upper end of the said fire-box and connected near its upper end with the interior of the kiln, compartments arranged on the sides of the said second combustion-chamber and connected with the interior thereof by openings, and transversely-extending channels connected with the outer air and with the said compartments and the firebox, substantially as shown and described.

5. A brick-kiln provided with a furnace comprising a fire-box connecting at its inner end with a combustion-chamber, a second combustion-chamber connected with the upper end of the said fire-box and connected near its upper end with the interior of the first-named combustion-chambers, substantially as shown and described.

SIMON DEWHIRST.

Witnesses:

J OHN LOUTTIT, JAMES N. SELLERS. 

